Musical instrument digital interface plug



FIG. 1 is a perspective view of a musical instrument digital interface plug showing my new design;

FIG. 2 is an end view thereof;

FIG. 3 is a sectional view taken along line 3--3 of FIG. 1;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side elevational view thereof, the left side elevational view thereof being a mirror image;

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a musical instrument digital interface plug, as shown and described. 